Live › vulnerability › CVE-2026-116248
In pgAdmin 4 server mode, a non-administrator can mark a server as shared with all users through the API, even though only administrators are meant to do that. A planted server pointing at a host the attacker controls can then capture the database passwords other users send when they connect to it.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-30 20:25 UTC. All times on this page are UTC.
Teams that run pgAdmin 4 in server mode with more than one non-administrator user. Desktop or single-user installs with only administrators are not exposed to the sharing path. A shared server carries no credentials itself, so the risk is a planted server that captures passwords typed by users who connect to it.
No product ranges from the sources yet.
pip show pgadmin4 or the version shown in the pgAdmin About dialog; versions before 9.19 are affected.9.19 or later (the sources state the fix is in 9.19 and later).Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
In pgAdmin 4 server mode only administrators are meant to share a server with all users; the server dialog shows the Shared switch only to them. The create and update endpoints of the server API, however, stored the "shared" flag and shared username they were sent, so any user able to register a server could share one with every other user. The servers.json import had a similar gap: a non-administrator's "Shared" entries were removed only after validation, so a file that also held an invalid entry could create a shared server.
A shared server carries no credentials, so this gives no direct access. It lets a user plant a server, named to look trusted, in every other user's tree and pointing at a host the user controls; anyone who then connects to it presents their own database password to that host.
The fix refuses a non-administrator's request that would share a server with HTTP 403, prunes a non-administrator's shared entries from a servers.json import before validating it, and warns at startup about servers shared earlier by non-administrators.
This issue affects pgAdmin 4: before 9.19.
This page as .md · .json · in your agent: get_signal("CVE-2026-116248")
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